Construction, standards and environment
L-shaped unit
In short and in plain language
An L-shaped unit is a ready-made concrete part shaped like the letter L.
It is used to build walls that hold up a slope.
Its foot sits under the soil. The soil presses on it and keeps the wall in place.
Definition
An L-shaped unit is a precast concrete element with an L-shaped cross-section, used as a retaining wall or edging. Its foot lies under the backfill, so the weight of the soil helps hold the wall in place. L-shaped units need little depth and are usually placed with machinery.